1 /*
2 * Copyright 2022 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #pragma once
18
19 #ifdef TARGET_FLOSS
20 #include <audio_hal_interface/audio_linux.h>
21 #else
22 #include <hardware/audio.h>
23 #endif
24
25 #include <hardware/bt_le_audio.h>
26
27 #include <bitset>
28 #include <vector>
29
30 #include "audio_hal_client/audio_hal_client.h"
31 #include "le_audio_types.h"
32
33 namespace bluetooth::le_audio {
34 namespace utils {
35 types::LeAudioContextType AudioContentToLeAudioContext(audio_content_type_t content_type,
36 audio_usage_t usage);
37 types::AudioContexts GetAudioContextsFromSourceMetadata(
38 const std::vector<struct playback_track_metadata_v7>& source_metadata);
39 types::AudioContexts GetAudioContextsFromSinkMetadata(
40 const std::vector<struct record_track_metadata_v7>& sink_metadata);
GetTargetLatencyForAudioContext(types::LeAudioContextType ctx)41 inline uint8_t GetTargetLatencyForAudioContext(types::LeAudioContextType ctx) {
42 switch (ctx) {
43 case types::LeAudioContextType::GAME:
44 FALLTHROUGH_INTENDED;
45 case types::LeAudioContextType::VOICEASSISTANTS:
46 FALLTHROUGH_INTENDED;
47 case types::LeAudioContextType::LIVE:
48 FALLTHROUGH_INTENDED;
49 case types::LeAudioContextType::CONVERSATIONAL:
50 FALLTHROUGH_INTENDED;
51 case types::LeAudioContextType::RINGTONE:
52 return types::kTargetLatencyLower;
53
54 default:
55 return types::kTargetLatencyUndefined;
56 }
57
58 return types::kTargetLatencyUndefined;
59 }
60
61 /* Helpers to get btle_audio_codec_config_t for Java */
62 bluetooth::le_audio::btle_audio_codec_index_t translateBluetoothCodecFormatToCodecType(
63 uint8_t codec_format);
64
65 bluetooth::le_audio::btle_audio_sample_rate_index_t translateToBtLeAudioCodecConfigSampleRate(
66 uint32_t sample_rate_capa);
67 bluetooth::le_audio::btle_audio_bits_per_sample_index_t translateToBtLeAudioCodecConfigBitPerSample(
68 uint8_t bits_per_sample);
69 bluetooth::le_audio::btle_audio_channel_count_index_t translateToBtLeAudioCodecConfigChannelCount(
70 uint8_t channel_count);
71 bluetooth::le_audio::btle_audio_frame_duration_index_t translateToBtLeAudioCodecConfigFrameDuration(
72 int frame_duration);
73 void fillStreamParamsToBtLeAudioCodecConfig(
74 const std::vector<struct set_configurations::AseConfiguration>& confs,
75 bluetooth::le_audio::btle_audio_codec_config_t& out_config);
76
77 std::vector<bluetooth::le_audio::btle_audio_codec_config_t> GetRemoteBtLeAudioCodecConfigFromPac(
78 const types::PublishedAudioCapabilities& group_pacs);
79 bool IsCodecUsingLtvFormat(const types::LeAudioCodecId& codec_id);
80 types::LeAudioConfigurationStrategy GetStrategyForAseConfig(
81 const std::vector<le_audio::set_configurations::AseConfiguration>& cfgs,
82 uint8_t device_cnt);
83 ::bluetooth::le_audio::LeAudioCodecConfiguration
84 GetAudioSessionCodecConfigFromAudioSetConfiguration(
85 const ::bluetooth::le_audio::set_configurations::AudioSetConfiguration& audio_set_conf,
86 uint8_t remote_direction);
87 const struct types::acs_ac_record* GetConfigurationSupportedPac(
88 const ::bluetooth::le_audio::types::PublishedAudioCapabilities& pacs,
89 const ::bluetooth::le_audio::set_configurations::CodecConfigSetting& codec_config_setting);
90 bool IsAseConfigMatchedWithPreferredRequirements(
91 const std::vector<struct set_configurations::AseConfiguration>& ase_confs,
92 const std::vector<
93 CodecManager::UnicastConfigurationRequirements::DeviceDirectionRequirements>& reqs,
94 uint8_t channel_cnt_per_ase);
95 } // namespace utils
96 } // namespace bluetooth::le_audio
97